Nissan Frontier. Manual — part 129
BRC-44
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 1]
C1109 POWER AND GROUND SYSTEM
4. Turn ignition switch OFF.
5. Check continuity between ABS actuator and electric unit (control unit) connector E127 terminals 16, 47
and ground.
Is the inspection result normal?
YES
>> Check battery for terminal looseness, low voltage, etc. If any malfunction is found, repair malfunc-
tioning parts.
NO
>> Repair or replace malfunctioning components.
Special Repair Requirement
INFOID:0000000009479267
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to
BRC-12, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
.
>> GO TO 2
2.
CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
BRC-13, "CALIBRATION OF DECEL G SENSOR : Description"
.
>> END
ABS actuator and electric unit
(control unit)
—
Continuity
Connector
Terminal
E127
16, 47
Ground
Yes
C1110, C1170 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-45
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 1]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
C1110, C1170 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
DTC Logic
INFOID:0000000009479268
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> Inspection End
Diagnosis Procedure
INFOID:0000000009479269
1.
REPLACE ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-115, "Removal and Installa-
.
Special Repair Requirement
INFOID:0000000009479270
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to
BRC-12, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
.
>> GO TO 2
2.
CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
BRC-13, "CALIBRATION OF DECEL G SENSOR : Description"
.
>> END
DTC
Display item
Malfunction detected condition
Possible cause
C1110
CONTROLLER FAILURE
When there is an internal malfunction in the ABS actuator
and electric unit (control unit).
• ABS actuator and electric unit
(control unit)
C1170
VARIANT CODING
In a case where VARIANT CODING is different.
Self-diagnosis results
CONTROLLER FAILURE
VARIANT CODING
BRC-46
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 1]
C1111 ABS MOTOR, MOTOR RELAY SYSTEM
C1111 ABS MOTOR, MOTOR RELAY SYSTEM
Description
INFOID:0000000009479271
PUMP
The pump returns the brake fluid stored in the reservoir to the master cylinder by reducing the pressure.
MOTOR
The motor drives the pump according to the signals transmitted by the ABS actuator and electric unit (control
unit).
DTC Logic
INFOID:0000000009479272
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> Inspection End
Diagnosis Procedure
INFOID:0000000009479273
Regarding Wiring Diagram information, refer to
BRC-92, "Wiring Diagram - VDC WITHOUT HILL DESCENT
1.
CONNECTOR INSPECTION
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check terminals for deformation, disconnect, looseness, and so on. If any malfunction is found, repair or
replace terminals.
4. Reconnect connectors and then perform the self-diagnosis. Refer to
.
Is any item indicated on the self-diagnosis display?
YES
>> GO TO 2
NO
>> Poor connection of connector terminals. Repair or replace connector.
2.
CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check voltage between the ABS actuator and electric unit (control unit) connector E127 terminal 1 and
ground.
DTC
Display item
Malfunction detected condition
Possible cause
C1111
PUMP MOTOR
During the actuator motor operating with ON, when the
actuator motor turns OFF, or when the control line for ac-
tuator motor relay is open.
• Harness or connector
• ABS actuator and electric unit
(control unit)
During the actuator motor operating with OFF, when the
actuator motor turns ON, or when the control line for relay
is shorted to ground.
Self-diagnosis results
PUMP MOTOR
C1111 ABS MOTOR, MOTOR RELAY SYSTEM
BRC-47
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 1]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace malfunctioning components.
3.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control unit) connector E127 terminals 16, 47 and
ground.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-115, "Removal and Installa-
.
NO
>> Repair or replace malfunctioning components.
Component Inspection
INFOID:0000000009479274
1.
CHECK ACTIVE TEST
1. On “ACTIVE TEST”, select “ABS MOTOR”.
2. Touch On and Off on screen. Make sure motor relay and actuator relay operate as shown in table below.
Is the inspection result normal?
YES
>> Inspection End
NO
>> Go to diagnosis procedure. Refer to
Special Repair Requirement
INFOID:0000000009479275
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to
BRC-12, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
.
>> GO TO 2
2.
CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
BRC-13, "CALIBRATION OF DECEL G SENSOR : Description"
.
>> END
ABS actuator and electric unit (control unit)
—
Voltage
Connector
Terminal
E127
1
Ground
Battery voltage
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E127
16, 47
Ground
Yes
Operation
On
Off
MOTOR RELAY
On
Off
ACTUATOR RLY
On
On
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